Operation: P.O.O.L. Codename: Kids Next Door : Season 4 Episode 7
TV-Y7 Cartoon Network 23m
Aired: May 6th, 2005 @ 7:00 PM EST on Cartoon Network
Prevent Opposite Operative's Larceny: Numbuh 4's new pool contains a portal that leads into a "negative" equivalent of the KND's world, where children obey evil dictator Negative Numbuh 4 and work for adults. A parody of Star Trek's "Mirror, Mirror".
